After an extensive session of testing, Han Sen was able to confirm the Thorn Scorpion glyph imbued his attacks with a lethal venom.
The toxins were extremely corrosive, but they had to contact blood to work. Once Han Sen came into contact with a creature's blood, it'd boil and fizz like acid.
All he would have to do was make an enemy bleed, and then he could allow the toxins to work their magic and taint the rest of the bloodstream. If the foe's toxic resistances were low, it'd be dead in no time at all.
Han Sen loved the concept of this glyph, but the power was not very compatible with the Invisible King Scorpion's power. With this discrepancy, Han Sen could not tell what would happen if they were combined.
After a period of thinking it over, Han Sen put the idea aside for the time being. He wanted to see if he could stumble across a better beast soul before making a final decision. If there was no greater choice, he'd use the gem on the glyph.